CheckSum.cpp

#include <boost/crc.hpp>
#include <ios> 
#include <iostream>
#include <string>

//Define namespace
using namespace std;

//Main method
int main()
{
    //Dados
    string              data1, data2, data3;
    //CRC 16
    boost::crc_16_type  result1, result2, result3;

    //Define example data
    data1 = "This is a test string";
    data2 = "This is a test string";
    data3 = "This is a test strings";

    //CRC Process
    result1.process_bytes(data1.c_str(), data1.length());

    //View result
    cout << "result1: " << hex << uppercase << result1.checksum() << endl;

    //CRC Process
    result2.process_bytes(data1.c_str(), data2.length());

    //View result
    cout << "result2: " << hex << uppercase << result2.checksum() << endl;
    
    //CRC Process
    result3.process_bytes(data1.c_str(), data3.length());

    //View result
    cout << "result3: " << hex << uppercase << result3.checksum() << endl;
    
    //Verify checksum
    if(result1.checksum() == result2.checksum()){
        //Console message
        cout << "Results 1 e 2 - valid checksum" << endl;
    }else{
        //Console message
        cout << "Results 1 e 2 - invalid checksum" << endl;
    }  
    
    //Verify checksum
    if(result1.checksum() == result3.checksum()){
        //Console message
        cout << "Results 1 e 3 - valid checksum" << endl;
    }else{
        //Console message
        cout << "Results 1 e 3 - invalid checksum" << endl;
    }    

    //Return
    return 0;
}